title: Implant diameter and length influence on survival: interim results during the first 2 years of function of implants by a single manufacturer.
abstract: OBJECTIVE
  The aim of the present study was to evaluate the influence of implant length and diameter on implant survival.
  
  
  METHODS
  A retrospective cohort of 787 consecutive patients from 2 private practices between the years 2008 and 2011 had been evaluated. Patient demographics, site and implant characteristics, and time of follow-up were recorded from the medical files.
  
  
  RESULTS
  Overall, 3043 implants were investigated. Overall survival rate was 98.7% with 39 implant failures recorded. Survival rates for narrow- (<3.75 mm), regular- (3.75-5 mm), and wide- (>5 mm) diameter implants were 98.2%, 98.7%, and 98.5%, respectively (P = 0.89). Survival rates of short (<10 mm) and regular (10 mm and above) implants were 97% and 98.7%, respectively (P = 0.22).
  
  
  CONCLUSIONS
  Implant length and diameter were not found to be significant factors affecting implant survival during the first 2 years of function in the present investigation of this specific implant system by a single manufacturer. Further long-term follow-up studies are warranted because 2-years are only interim short-term results when dealing with dental implants.
authors.affiliation: Department of Oral Rehabilitation, The Maurice and Gabriela Goldschleger School of Dental Medicine, Tel-Aviv University, Tel-Aviv, Israel.
authors.forename: Eitan
authors.initials: E
authors.lastname: Mijiritsky
authors.forename: Ziv
authors.initials: Z
authors.lastname: Mazor
authors.forename: Adi
authors.initials: A
authors.lastname: Lorean
authors.forename: Liran
authors.initials: L
authors.lastname: Levin
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000540:Alveolar Ridge Augmentation / Q000706:statistics & numerical data; D015331:Cohort Studies; D015921:Dental Implants / Q000706:statistics & numerical data*; D017267:Dental Prosthesis Design / Q000706:statistics & numerical data*; D019232:Dental Restoration Failure / Q000706:statistics & numerical data; D005500:Follow-Up Studies; D006801:Humans; D057893:Immediate Dental Implant Loading / Q000706:statistics & numerical data; D008334:Mandible / Q000601:surgery; D008437:Maxilla / Q000601:surgery; D008875:Middle Aged; D012189:Retrospective Studies; D013499:Surface Properties; D016019:Survival Analysis; D055815:Young Adult
chemical_list: D015921:Dental Implants